But the photos didn't lead to tips for investigators, who arrested Ross on Friday, March 16, Grandjean said. However, she was still driving the dark green Mercedes-Benz ML320 she allegedly used to flee the bank.

Ross is accused of handing a teller a note demanding money at 11:04 a.m. May 16, 2011. She allegedly put a black, cylindrical device with wires attached on the counter and told the teller it was a bomb.

While the bomb was a fake, Grandjean said, the incident followed a real bomb blast at a bank in Woodburn that killed two police officers, so police responded with a bomb squad.

Hansen is accused of assisting in the robbery, Grandjean said.

Footage from an ATM in the lobby shows him loitering in the entrance.

'He was clearly a lookout,' Grandjean said.

Police accused Hansen in the robbery while he was already in jail on a separate allegation.

On Wednesday, March 14, Hansen was arrested on a first-degree theft warrant after Gresham police officers pulled him over for running a red light on Northeast Division Street.

According to the police report, Hansen said to the officer, 'I'll be honest with you: I have a suspended license, no insurance, and a warrant for my arrest,' and told the officer he was taking his 8-year-old-son, who was in the car, to the hospital for a high fever.

The officer called paramedics to check the boy, and they determined he wasn't ill. The child went with his mother and Hansen was arrested.

Ross and Hansen are being held without bail at the Multnomah County Detention Center.